package cn.eric.game.swing;

import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class TestAction {
	   private JFrame mainFrame;
	   private JLabel headerLabel;
	   private JLabel statusLabel;
	   private JPanel controlPanel;

	   public TestAction(){
	      prepareGUI();
	   }

	   public static void main(String[] args){
		   TestAction  swingListenerDemo = new TestAction();  
	      swingListenerDemo.showActionListenerDemo();
	   }

	   private void prepareGUI(){
	      mainFrame = new JFrame("Java SWING Examples");
	      mainFrame.setSize(400,400);
	      mainFrame.setLayout(new GridLayout(3, 1));

	      headerLabel = new JLabel("",JLabel.CENTER );
	      statusLabel = new JLabel("",JLabel.CENTER);        

	      statusLabel.setSize(350,100);
	      mainFrame.addWindowListener(new WindowAdapter() {
	         public void windowClosing(WindowEvent windowEvent){
		        System.exit(0);
	         }        
	      });    
	      controlPanel = new JPanel();
	      controlPanel.setLayout(new FlowLayout());

	      mainFrame.add(headerLabel);
	      mainFrame.add(controlPanel);
	      mainFrame.add(statusLabel);
	      mainFrame.setVisible(true);  
	   }

	   private void showActionListenerDemo(){
	      headerLabel.setText("Listener in action: ActionListener");      

	      JPanel panel = new JPanel();      
	      panel.setBackground(Color.magenta);            
			
	      JButton okButton = new JButton("OK");

	      okButton.addActionListener(new CustomActionListener());        
	      panel.add(okButton);
	      controlPanel.add(panel);
	      mainFrame.setVisible(true); 
	   }
	   
	   class CustomActionListener implements ActionListener{
	      public void actionPerformed(ActionEvent e) {
	          statusLabel.setText("Ok Button Clicked.");
	      }
	   }
}
